I always receive the exception: Cannot read properties of null (reading 'getElementsByTagName') #90

sandrade-dcl · 2022-05-20T17:46:22Z

I'm using the WebGLInput script in my input field (it is a TMP_InputField), and when I test it in my WebGL build, just when I put the focus on the input textbox, the execution is frozen and I receive these error logs in the Chrome console:

Error logs

rollbar.min.js:1 exception thrown: TypeError: Cannot read properties of null (reading 'getElementsByTagName'),TypeError: Cannot read properties of null (reading 'getElementsByTagName')
    at _WebGLInputCreate (https://renderer-artifacts.decentraland.org/branch/fix/cjk-fonts-issues/unity.framework.js.br?v=1653067972662:408:56004)
    at _WebGLInputPlugin_WebGLInputCreate_m285C4119EA43278205F4BBED9564AE827288F456 (https://renderer-artifacts.decentraland.org/branch/fix/cjk-fonts-issues/unity.wasm.br?v=1653067972662:wasm-function[127768]:0x200473a)
    at _WebGLInput_OnSelect_mA26F770E527D1E37BA62A28B7202E2491C9D5CDF (https://renderer-artifacts.decentraland.org/branch/fix/cjk-fonts-issues/unity.wasm.br?v=1653067972662:wasm-function[127767]:0x20044de)
    at _WebGLInput_Update_mB2E249ED9D67301C1B3993B0C6087CA81D2D4066 (https://renderer-artifacts.decentraland.org/branch/fix/cjk-fonts-issues/unity.wasm.br?v=1653067972662:wasm-function[127781]:0x2004b8b)
    at __Z65RuntimeInvoker_TrueVoid_t700C6383A2A510C2CF4DD86DABD5CA9FF70ADAC5PFvvEPK10MethodInfoPvPS4_ (https://renderer-artifacts.decentraland.org/branch/fix/cjk-fonts-issues/unity.wasm.br?v=1653067972662:wasm-function[126254]:0x1fdae04)
    at dynCall_iiiii (https://renderer-artifacts.decentraland.org/branch/fix/cjk-fonts-issues/unity.wasm.br?v=1653067972662:wasm-function[128463]:0x2020ef0)
    at Object.dynCall_iiiii (https://renderer-artifacts.decentraland.org/branch/fix/cjk-fonts-issues/unity.framework.js.br?v=1653067972662:408:534043)
    at invoke_iiiii (https://renderer-artifacts.decentraland.org/branch/fix/cjk-fonts-issues/unity.framework.js.br?v=1653067972662:408:365569)
    at __ZN6il2cpp2vm7Runtime6InvokeEPK10MethodInfoPvPS5_PP15Il2CppException (https://renderer-artifacts.decentraland.org/branch/fix/cjk-fonts-issues/unity.wasm.br?v=1653067972662:wasm-function[122183]:0x1f64817)
    at _il2cpp_runtime_invoke (https://renderer-artifacts.decentraland.org/branch/fix/cjk-fonts-issues/unity.wasm.br?v=1653067972662:wasm-function[120889]:0x1f3da08)
    at __Z23scripting_method_invoke18ScriptingMethodPtr18ScriptingObjectPtrR18ScriptingArgumentsP21ScriptingExceptionPtrb (https://renderer-artifacts.decentraland.org/branch/fix/cjk-fonts-issues/unity.wasm.br?v=1653067972662:wasm-function[5531]:0x25722d)
    at __ZN19ScriptingInvocation6InvokeEP21ScriptingExceptionPtrb (https://renderer-artifacts.decentraland.org/branch/fix/cjk-fonts-issues/unity.wasm.br?v=1653067972662:wasm-function[5529]:0x256f19)
    at __ZN13MonoBehaviour16CallUpdateMethodEi (https://renderer-artifacts.decentraland.org/branch/fix/cjk-fonts-issues/unity.wasm.br?v=1653067972662:wasm-function[12156]:0x48c0e0)
    at __ZN13MonoBehaviour6UpdateEv (https://renderer-artifacts.decentraland.org/branch/fix/cjk-fonts-issues/unity.wasm.br?v=1653067972662:wasm-function[12128]:0x48ab8d)
    at __ZN20BaseBehaviourManager12CommonUpdateI16BehaviourManagerEEvv (https://renderer-artifacts.decentraland.org/branch/fix/cjk-fonts-issues/unity.wasm.br?v=1653067972662:wasm-function[14625]:0x5bbcc3)
    at __ZN13UpdateManager6UpdateEv (https://renderer-artifacts.decentraland.org/branch/fix/cjk-fonts-issues/unity.wasm.br?v=1653067972662:wasm-function[14624]:0x5bb9dc)
    at __ZZ23InitPlayerLoopCallbacksvEN41UpdateScriptRunBehaviourUpdateRegistrator7ForwardEv (https://renderer-artifacts.decentraland.org/branch/fix/cjk-fonts-issues/unity.wasm.br?v=1653067972662:wasm-function[12656]:0x4bb30a)
    at __Z17ExecutePlayerLoopP22NativePlayerLoopSystem (https://renderer-artifacts.decentraland.org/branch/fix/cjk-fonts-issues/unity.wasm.br?v=1653067972662:wasm-function[12272]:0x495b36)
    at __Z17ExecutePlayerLoopP22NativePlayerLoopSystem (https://renderer-artifacts.decentraland.org/branch/fix/cjk-fonts-issues/unity.wasm.br?v=1653067972662:wasm-function[12272]:0x495b4b)
    at __Z10PlayerLoopv (https://renderer-artifacts.decentraland.org/branch/fix/cjk-fonts-issues/unity.wasm.br?v=1653067972662:wasm-function[12260]:0x495688)
    at __ZL8MainLoopv (https://renderer-artifacts.decentraland.org/branch/fix/cjk-fonts-issues/unity.wasm.br?v=1653067972662:wasm-function[12248]:0x49396b)
    at dynCall_v (https://renderer-artifacts.decentraland.org/branch/fix/cjk-fonts-issues/unity.wasm.br?v=1653067972662:wasm-function[128569]:0x2021b7f)
    at Object.dynCall_v (https://renderer-artifacts.decentraland.org/branch/fix/cjk-fonts-issues/unity.framework.js.br?v=1653067972662:408:547221)
    at browserIterationFunc (https://renderer-artifacts.decentraland.org/branch/fix/cjk-fonts-issues/unity.framework.js.br?v=1653067972662:408:189514)
    at Object.runIter (https://renderer-artifacts.decentraland.org/branch/fix/cjk-fonts-issues/unity.framework.js.br?v=1653067972662:408:192575)
    at Array.Browser_mainLoop_runner (https://renderer-artifacts.decentraland.org/branch/fix/cjk-fonts-issues/unity.framework.js.br?v=1653067972662:408:191037)
    at tick (https://renderer-artifacts.decentraland.org/branch/fix/cjk-fonts-issues/unity.framework.js.br?v=1653067972662:363:28)

Uncaught TypeError: Cannot read properties of null (reading 'getElementsByTagName')
    at _WebGLInputCreate (unity.framework.js.br?v=1653067972662:408:56004)
    at _WebGLInputPlugin_WebGLInputCreate_m285C4119EA43278205F4BBED9564AE827288F456 (unity.wasm.br?v=1653067972662:0x200473a)
    at _WebGLInput_OnSelect_mA26F770E527D1E37BA62A28B7202E2491C9D5CDF (unity.wasm.br?v=1653067972662:0x20044de)
    at _WebGLInput_Update_mB2E249ED9D67301C1B3993B0C6087CA81D2D4066 (unity.wasm.br?v=1653067972662:0x2004b8b)
    at __Z65RuntimeInvoker_TrueVoid_t700C6383A2A510C2CF4DD86DABD5CA9FF70ADAC5PFvvEPK10MethodInfoPvPS4_ (unity.wasm.br?v=1653067972662:0x1fdae04)
    at dynCall_iiiii (unity.wasm.br?v=1653067972662:0x2020ef0)
    at Object.dynCall_iiiii (unity.framework.js.br?v=1653067972662:408:534043)
    at invoke_iiiii (unity.framework.js.br?v=1653067972662:408:365569)
    at __ZN6il2cpp2vm7Runtime6InvokeEPK10MethodInfoPvPS5_PP15Il2CppException (unity.wasm.br?v=1653067972662:0x1f64817)
    at _il2cpp_runtime_invoke (unity.wasm.br?v=1653067972662:0x1f3da08)
    at __Z23scripting_method_invoke18ScriptingMethodPtr18ScriptingObjectPtrR18ScriptingArgumentsP21ScriptingExceptionPtrb (unity.wasm.br?v=1653067972662:0x25722d)
    at __ZN19ScriptingInvocation6InvokeEP21ScriptingExceptionPtrb (unity.wasm.br?v=1653067972662:0x256f19)
    at __ZN13MonoBehaviour16CallUpdateMethodEi (unity.wasm.br?v=1653067972662:0x48c0e0)
    at __ZN13MonoBehaviour6UpdateEv (unity.wasm.br?v=1653067972662:0x48ab8d)
    at __ZN20BaseBehaviourManager12CommonUpdateI16BehaviourManagerEEvv (unity.wasm.br?v=1653067972662:0x5bbcc3)
    at __ZN13UpdateManager6UpdateEv (unity.wasm.br?v=1653067972662:0x5bb9dc)
    at __ZZ23InitPlayerLoopCallbacksvEN41UpdateScriptRunBehaviourUpdateRegistrator7ForwardEv (unity.wasm.br?v=1653067972662:0x4bb30a)
    at __Z17ExecutePlayerLoopP22NativePlayerLoopSystem (unity.wasm.br?v=1653067972662:0x495b36)
    at __Z17ExecutePlayerLoopP22NativePlayerLoopSystem (unity.wasm.br?v=1653067972662:0x495b4b)
    at __Z10PlayerLoopv (unity.wasm.br?v=1653067972662:0x495688)
    at __ZL8MainLoopv (unity.wasm.br?v=1653067972662:0x49396b)
    at dynCall_v (unity.wasm.br?v=1653067972662:0x2021b7f)
    at Object.dynCall_v (unity.framework.js.br?v=1653067972662:408:547221)
    at browserIterationFunc (unity.framework.js.br?v=1653067972662:408:189514)
    at Object.runIter (unity.framework.js.br?v=1653067972662:408:192575)
    at Array.Browser_mainLoop_runner (unity.framework.js.br?v=1653067972662:408:191037)
    at tick (unity.framework.js.br?v=1653067972662:363:28)

Chrome console screenshot

My input field configuration in Unity

Unity version used

Unity 2020.3.0f1

Thanks in advance! :)

The text was updated successfully, but these errors were encountered:

jmpy · 2022-06-02T05:44:21Z

@sandrade-dcl
If you have recently updated your Unity from 2019 it may be the same problem.
In my case, I solved the issue by changing the following part of the html template.

Before the change
<div id="unityContainer">
After the change
<div id="unity-container">

Hope this helps.

sandrade-dcl · 2022-06-07T21:25:50Z

@sandrade-dcl If you have recently updated your Unity from 2019 it may be the same problem. In my case, I solved the issue by changing the following part of the html template.

Before the change <div id="unityContainer"> After the change <div id="unity-container">

Hope this helps.

Hey @jmpy, thanks for the workaround! I will try it! :)

helmetica · 2022-08-19T17:53:59Z

error here:

first there is a call to the method of container, and then a check for null

container.getElementsByTagName('canvas')[0] replace with document.getElementsByTagName('canvas')[0]

ronniechoyy · 2022-08-23T09:44:20Z

error here:

first there is a call to the method of container, and then a check for null

container.getElementsByTagName('canvas')[0] replace with document.getElementsByTagName('canvas')[0]

Where can change it? I'm happen this same issue

fanling3 · 2022-09-02T15:24:54Z

@sandrade-dcl If you have recently updated your Unity from 2019 it may be the same problem. In my case, I solved the issue by changing the following part of the html template.

Before the change <div id="unityContainer"> After the change <div id="unity-container">

Hope this helps.

Where can you find <div id="unityContainer">? I don't have this in my index.html..

ronniechoyy · 2022-09-03T07:44:29Z

Finally I change the WebGLInput script, not on the webgl template
You can find something like that on the script but th elif and else is set by commend, just delete the commend symbol
Also see your webgl template canvasid is that same as the script

to this

Hope this help

sandrade-dcl · 2022-09-09T15:40:32Z

@sandrade-dcl If you have recently updated your Unity from 2019 it may be the same problem. In my case, I solved the issue by changing the following part of the html template.

Before the change <div id="unityContainer"> After the change <div id="unity-container">

Hope this helps.

It worked!! Thanks @jmpy 😄

sandrade-dcl · 2022-09-09T15:43:04Z

Finally I change the WebGLInput script, not on the webgl template You can find something like that on the script but th elif and else is set by commend, just delete the commend symbol Also see your webgl template canvasid is that same as the script to this. Hope this help

Yeah, after what @jmpy told me about the name of the div name, I looked for where in the code it was being used and I finally reached to the same solution that you suggest :) In my case I always use the name gameContainer for this div.

sandrade-dcl · 2022-09-09T15:55:13Z

It is definitively happening because of the name of the main div container... In my case, as I'm always using the name gameContainer for this div, I had to modify the WebGLInput code in order to set ALWAYS this name into WebGLInput.CanvasId and not others depending on the Unity version.

In my case I replaced this:

static WebGLInput()
 {
#if UNITY_2020_1_OR_NEWER
    WebGLInput.CanvasId = "unity-container";
#elif UNITY_2019_1_OR_NEWER
    WebGLInput.CanvasId = "unityContainer";
#else
    WebGLInput.CanvasId = "gameContainer";
#endif
    WebGLInputPlugin.WebGLInputInit();
}

by this:

static WebGLInput()
{
    WebGLInput.CanvasId = "gameContainer";
    WebGLInputPlugin.WebGLInputInit();
}

And it worked!

KubilayHeterometa · 2023-04-14T13:38:46Z

error here:

first there is a call to the method of container, and then a check for null

container.getElementsByTagName('canvas')[0] replace with document.getElementsByTagName('canvas')[0]

That solved my problem thx. I am using 2021.3.15f1.
For the one who couldn't find the file, it is "webgl-build.framework.js". Which is one of the four files in your Build folder.

TreeBobber1 · 2023-10-28T13:17:15Z

error here:
first there is a call to the method of container, and then a check for null
container.getElementsByTagName('canvas')[0] replace with document.getElementsByTagName('canvas')[0]

That solved my problem thx. I am using 2021.3.15f1. For the one who couldn't find the file, it is "webgl-build.framework.js". Which is one of the four files in your Build folder.

This should be referenced in how to install the WebGLInput because my god, I just spent 1 hour looking for this

This was referenced May 20, 2022

CJK fonts are not being rendered decentraland/unity-renderer#2334

Closed

CJK: The IME tool is not appearing in WebGL decentraland/unity-renderer#2351

Closed

sandrade-dcl mentioned this issue May 31, 2022

Unity 2021.3.3f1 - crashes immediately #92

Closed

sandrade-dcl closed this as completed Sep 9, 2022

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I always receive the exception: Cannot read properties of null (reading 'getElementsByTagName') #90

I always receive the exception: Cannot read properties of null (reading 'getElementsByTagName') #90

sandrade-dcl commented May 20, 2022 •

edited

jmpy commented Jun 2, 2022 •

edited

sandrade-dcl commented Jun 7, 2022

helmetica commented Aug 19, 2022

ronniechoyy commented Aug 23, 2022

fanling3 commented Sep 2, 2022

ronniechoyy commented Sep 3, 2022

sandrade-dcl commented Sep 9, 2022

sandrade-dcl commented Sep 9, 2022 •

edited

sandrade-dcl commented Sep 9, 2022

KubilayHeterometa commented Apr 14, 2023

TreeBobber1 commented Oct 28, 2023

I always receive the exception: Cannot read properties of null (reading 'getElementsByTagName') #90

I always receive the exception: Cannot read properties of null (reading 'getElementsByTagName') #90

Comments

sandrade-dcl commented May 20, 2022 • edited

Error logs

Chrome console screenshot

My input field configuration in Unity

Unity version used

jmpy commented Jun 2, 2022 • edited

sandrade-dcl commented Jun 7, 2022

helmetica commented Aug 19, 2022

ronniechoyy commented Aug 23, 2022

fanling3 commented Sep 2, 2022

ronniechoyy commented Sep 3, 2022

sandrade-dcl commented Sep 9, 2022

sandrade-dcl commented Sep 9, 2022 • edited

sandrade-dcl commented Sep 9, 2022

KubilayHeterometa commented Apr 14, 2023

TreeBobber1 commented Oct 28, 2023

sandrade-dcl commented May 20, 2022 •

edited

jmpy commented Jun 2, 2022 •

edited

sandrade-dcl commented Sep 9, 2022 •

edited